//
//  VisitorLoginView.swift
//  新浪微博
//
//  Created by yzl on 15/7/30.
//  Copyright © 2015年 yjc. All rights reserved.
//

import UIKit

 /// 定义访客试图协议
protocol VisitorLoginViewDelegate: NSObjectProtocol {
/// 将要登录
    func visitorLoginViewWillLogin()
/// 将要注册
    func visitorLoginViewWillRegister()
}
///  访客视图整体在里面实现
class VisitorLoginView: UIView {
/// 和oc对比，定义代理属性,一定要用weak
    weak var delegate:VisitorLoginViewDelegate?
    // MARK : - 按钮监听方法
    func clickLogin() {
        // 发送消息给代理
        delegate?.visitorLoginViewWillLogin()
    }
    func clickRegister() {
        delegate?.visitorLoginViewWillRegister()
    }
    ///MARK 设置视图信息
    func setupViewInfo(isHome: Bool,imageName: String,message:String) {
        messageLabel.text = message
        iconView.image = UIImage(named: imageName)
        homeIconView.hidden = !isHome
        isHome ? startAmimation() : sendSubviewToBack(maskIconView)
    }
    /// 开始动画
    private func startAmimation() {
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 20.0
        
        anim.removedOnCompletion = false
        iconView.layer.addAnimation(anim, forKey: nil)
    }
    
    
    // MARK - 界面初始化
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }

    required init?(coder aDecoder: NSCoder) {
       // fatalError("init(coder:) has not been implemented")
        super.init(coder: aDecoder)
        setupUI()
    }
   /// 设置界面
    private func setupUI() {
        // 1, 添加控件
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(homeIconView)
        addSubview(messageLabel)
        addSubview(registerButton)
        addSubview(loginButton)
        // 2,控件已经懒加载， 根据懒加载顺序设自动布局
        // 1>,图标
        iconView.translatesAutoresizingMaskIntoConstraints = false
        addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: iconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: self, attribute: NSLayoutAttribute.CenterY, multiplier: 1.0, constant: -40))
        
        // 2> 小房子 - 用代码开发时，最好所有相关的控件最好有一个统一的参照物
        homeIconView.translatesAutoresizingMaskIntoConstraints = false
        addConstraint(NSLayoutConstraint(item: homeIconView, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: homeIconView, attribute: NSLayoutAttribute.CenterY, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterY, multiplier: 1.0, constant: 0))
        
        // 3> 消息文字
        messageLabel.translatesAutoresizingMaskIntoConstraints = false
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.CenterX, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.CenterX, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: iconView, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: messageLabel, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1.0, constant: 224))
        
        // 4> 注册按钮
        registerButton.translatesAutoresizingMaskIntoConstraints = false
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Left, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Left, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1.0, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1.0, constant: 35))
        
        // 5> 登录按钮
        loginButton.translatesAutoresizingMaskIntoConstraints = false
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Right, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Right, multiplier: 1.0, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Top, relatedBy: NSLayoutRelation.Equal, toItem: messageLabel, attribute: NSLayoutAttribute.Bottom, multiplier: 1.0, constant: 16))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Width, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1.0, constant: 100))
        addConstraint(NSLayoutConstraint(item: loginButton, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1.0, constant: 35))
        // 6>,遮罩视图约束
        maskIconView.translatesAutoresizingMaskIntoConstraints = false
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[subview]-0-|", options:NSLayoutFormatOptions(rawValue: 0)  , metrics: nil, views: ["subview" : maskIconView]))
        
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[subview]-(-35)-[regButton]", options:NSLayoutFormatOptions(rawValue: 0)  , metrics: nil, views: ["subview" : maskIconView,"regButton": registerButton]))
        // 7>,设置背景颜色
        backgroundColor = UIColor(white: 237.0/255.0, alpha: 1.0)
        
    }
   // MARK: 懒加载控件
/// 图标
    private lazy var iconView: UIImageView = {
        let iv = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
        return iv
    }()
/// 小房子
    private lazy var homeIconView: UIImageView = {
        let iv = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
        return iv
    }()
 /// 遮罩视图
    private lazy var maskIconView: UIImageView = {
        let iv = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
        return iv
    }()
    
/// 消息文字
    private lazy var messageLabel:UILabel = {
        let label = UILabel()
        label.text = "关注一些人，回这里看看有什么惊喜关注一些人，回这里看看有什么惊喜"
        label.textColor = UIColor.darkGrayColor()
        label.font = UIFont.systemFontOfSize(14)
        label.numberOfLines = 0
        // 这个经常会用到
        label.sizeToFit()
        return label
    }()
    // 设置按钮样式
    
/// 注册按钮 点击
    private lazy var registerButton: UIButton = {
        let btn = UIButton()
        btn.layer.masksToBounds = true
        btn.layer.cornerRadius = 5
        btn.setTitle("注册", forState: UIControlState.Normal )
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        btn.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        // 注册点击事件
        btn.addTarget(self , action: "clickRegister", forControlEvents: UIControlEvents.TouchUpInside)
        return btn
    }()
/// 登录按钮 点击
    private lazy var loginButton: UIButton = {
        let btn = UIButton()
        btn.layer.masksToBounds = true
        btn.layer.cornerRadius = 5
        btn.setTitle("登录", forState: UIControlState.Normal )
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: UIControlState.Normal)
        btn.setTitleColor(UIColor.orangeColor(), forState: UIControlState.Normal)
        // 注册点击事件
        btn.addTarget(self , action: "clickLogin", forControlEvents: UIControlEvents.TouchUpInside)
        return btn
        }()

}
